Eurasian Collared/ Mourning - Hybrid Doves - Memphis, TN

I believe this first dove is a candidate for a possible hybrid Eurasian Collared-Dove and Mourning Dove. I had previously seen the bird in with the large flocks of EUCD but it was always at a distance and the bird's tail was hidden. I had passed it off as just aberrant coloration, although I have never seen a ECDO this dark. When I saw it perched on the wire, 1-31-04, my mind went into a tailspin. Since that sighting, I have run across at least 3 other birds that show traits of hybrids. Please click on thumbnails to see enlarged images and my comments.